Category Archives: JPL

JPL, Pasadena, Calif. – The year 2017 marked several milestones in science, technology and flight projects for NASA’s Jet Propulsion Laboratory, Pasadena, California. Voyager 1 returned data from interstellar space as it surpassed 40 years in flight. NASA’s Cassini Spacecraft ended its 13-year tour of Saturn. JPL celebrated the 25th anniversary of the launch of the Earth-orbiting Topex/Poseidon satellite.

As JPL turns 82 in 2018, its missions and activities will continue to inspire. Here is a preview of events planned for JPL (some dates subject to change):

First satellite launched by the United States, less than four months after the Soviet Union launched Sputnik 1

Designed, built and operated by JPL

Discovered belts of charged particle radiation held in place by Earth’s magnetic field. The first discovery of the Space Age, the radiation belts were later named in honor of their discoverer, the principal investigator of Explorer 1’s cosmic ray detector, James Van Allen.

Objective:

Begin U.S. space exploration

Image Credit: NASA/JPL-Caltech/Lockheed Martin

Artist’s concept of the twin GRACE-FO satellitesSolar arrays on NASA’s InSight lander Artist’s concept of NASA’s Mars 2020 rover exploring MarsDeep Space Atomic Clock The solar arrays on NASA’s InSight lander are deployed in this test inside a clean room at Lockheed Martin Space, Denver. This configuration is how the spacecraft will look on the surface of Mars. Image Credit: NASA/JPL-Caltech/Lockheed Martin

Will continue the work of the original GRACE mission, which completed its science mission in October after more than 15 years in orbit

Consists of twin spacecraft that map variations in Earth’s gravity field

Will demonstrate a new laser-ranging technology to dramatically improve the precision of its measurement system, while continuing to track Earth’s water movement and changes caused by the addition of water to the ocean

Objective:

Provide a unique view of the Earth system, with far-reaching benefits to society

Students team up with engineers from businesses, universities and research institutions.

The program gives students a hands-on, inside look at the engineering profession as they design and build their own “champion robot.”

Explore JPL

Dates: June 9-10, 2018

Location: JPL

Summary: During this free event, pre-ticketed members of the public can visit JPL for a firsthand look at such highlights as mission control, a life-size model of the Mars rover Curiosity; and robots on display; and hear from people working on such future Mars missions as Insight and Mars 2020. Tickets for this popular event are limited. Details about how and when to request tickets will be posted.

Pasadena, Calif. , NASA Jet Propulsion Laboratory, CALtech – After almost 20 years in space, NASA’s Cassini spacecraft begins the final chapter of its remarkable story of exploration: its Grand Finale. In Cassini’s Grand Finale orbits — the final orbits of its nearly 20-year mission — the spacecraft travels in an elliptical path that sends it diving at tens of thousands of miles per hour through the 1,500-mile-wide (2,400-kilometer) space between the rings and the planet where no spacecraft has ventured before.

In the still from the short film Cassini’s Grand Finale, the spacecraft is shown diving between Saturn and the planet’s innermost ring on April 7, 2017 Credit NASA/JPL-Caltech

Cassini’s current position image uses real spacecraft trajectories and is updated every five minutes. Distance and velocities are updated in real-time. For a full 3D, immersive experience download NASA’s free Eyes on the Solar System app. Credit: NASA/JPL-Caltech

Each of these last 22 orbits takes about six and a half days to complete. They begin April 22 and end Sept. 15. When Cassini is nearest to Saturn during each orbit, the spacecraft’s speed ranges between 75,000 and 78,000 miles per hour (121,000 and 126,000 kilometers per hour), depending on the orbit. The Grand Finale orbits are so named because they not only carry Cassini to its end, but because they are truly grand. The spacecraft flies through an unexplored region of the Saturnian system, producing unique images and attempting to solve longtime mysteries, such as the mass of Saturn’s rings and the planet’s rotation rate — the length of a Saturn day. And then during Cassini’s last five orbits, the spacecraft dips down to directly sample Saturn’s upper atmosphere.

Cassini gazes across the icy rings of Saturn toward the icy moon Tethys, whose night side is illuminated by Saturnshine, or sunlight reflected by the planet. NASA/JPL-Caltech/Space Science Institute

The summaries posted on this page for each Grand Finale orbit include only a few highlights of the many unparalleled science investigations that Cassini performs during these unprecedented orbits. Also, because Saturn is a gas giant, Cassini can’t be described as being a certain distance from the planet’s “surface.” So, to convey Cassini’s distance from Saturn, each summary also includes the spacecraft’s closest approach to Saturn’s 1-bar level for that orbit. A bar is the atmospheric pressure you experience on Earth at sea level.

The Cassini mission is a cooperative project of NASA, ESA (the European Space Agency) and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA’s Science Mission Directorate, Washington. The Cassini orbiter and its two onboard cameras were designed, developed and assembled at JPL. The imaging operations center is based at the Space Science Institute in Boulder, Colorado. For more information about the Cassini-Huygens mission visit https://saturn.jpl.nasa.gov and http://www.nasa.gov/cassini . The Cassini imaging team homepage is at http://ciclops.org . Cassini’s Grand Finale orbits — the final orbits of its nearly 20-year mission — the spacecraft travels in an elliptical path that sends it diving at tens of thousands of miles per hour through space between the rings and the planet where no spacecraft has ventured before on September 15, 2017.